Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and durability. Fits 2002 - 2005 Subaru Impreza WRX (2.0L 4cyl Turbo EJ205; 5-speed). Grip Racing spring retainers utilize wraparound spring windows and large retainer stampings to provide spring rigidity, reduce stress concentrations, and increase strength and reliability.
